1. Let = (1,2,3), let = (-2, 1, -1), and let w = (2,0,-2) (a) Find 2-3. (b) Compute + + w||. (c) Find the distance between 7 and Find proj.

Does the relation is a brother of have a reflexive property consider one male? A symmetric property consider two males? A transitive property consider three males?

Does the relation is a friend of have a reflexive property consider one person? A symmetric property consider two people? A transitive property consider three people?